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Tender For Special Repairs To Bore Well At Afs Yelahanka; 1 M&L for Yield test for the bore well by continuously pumping for 16 hours to determine safe pumping yield complete all as specified and directed.Note- V Notch and other equipment including pump set shall be arranged by the contractor as his own cost and rate is included the same 2 Disconnecting electrical connection from the starter/panel for submersible pump set of upto 10 HP capacity taking up pump set with motor from bore well of depth upto1200feet along with the flat cable and reinstalling the pumpset and making necessary electrical connection at the LT Panel and lowering the pump and motor including transporting if necessarytesting and commissioning after desilting/development of bore wells using necessary tools and plants, vehicle mounted crane etc complete all as specified and directed.Note: The task requires ensuring the integrity of the components, proper alignment, and functionality checks post-installation. The process should adhere to safety standards and avoid any damage to the equipment or borewell structure all as directed by Engineer in Charge 3 M&L for comprehensive cleaning of borewell of depth upto 1200ft, including the removal of sediment, debris, and contaminants. The service involves deploying appropriate cleaning equipment, such as high-pressure water jets or mechanical scrapers, to thoroughly clean the borewell interior. The process includes inspecting the wells condition, ensuring the removal of blockages, including re-drilling of filled up borewell at final depth. The task also covers disposal of waste material and restoring the borewell to optimal operating conditions. All work must adhere to safety and environmental standards complete all as specified and directed. 4 M&L for Conducting borewell inspection using a high-resolution submersible camera to assess the depth, casing condition, vertical alignment, water table level with high resolution monitor system along with necessary T&P and overall structural integrity of the borewell which includes submission of video report and analysis report of the inspected borewell complete all as specified and directed. 5 Chemical and bacteriological analysis of water as per IS-10500, sample collected from bore wells complete all as specified and directed.Note- water to be tested in approved at NABL LAB and rate is inclusive of same. 6 Rewinding of submersible pumpset with copper winding wires of appropriate gauge, as per specifications and / or directions by Engineer in Charge including all materials, labour, equipment and testing for all types of submersible pumpsets etc. (with guarantee period not less than 6 months) complete all as specified and directed. 7 For all types of submersible pumpsets upto 3.0 H.P. 8 For all types of submersible pumpsets upto 5.0 H.P. 9 For all types of submersible pumpsets upto 7.5 H.P. 10 For all types of submersible pumpsets upto 10 H.P. 11 S&F inrepairs of the following components of submersible pump sets, as and when requiredas directed by the Engineer in Charge, with respective make of damaged ones, including all materials, labour, tools and testing etc. (with guarantee of period not less than 1 year) complete all as specified and directed. 12 The bowls of same type and make 13 The Intermediate piece (IP) with IP leaded bronze brush. 14 The Oil Seal 15 The Impeller (Shell moulded with aluminium and bronze) 16 The discharge outlet (DO) bearing DO steel brush DO bearing 17 The steel bearing bush (DO steel bush) 18 The allen screw 19 The pump shaft made out of stainless steel counterless ground with key way (upto 8 stages) 20 The pump key (stainless steel) 21 The pump coupling (stainless steel) 22 The Non-Return Valve (NRV) assembly complete with rubber O ring 23 The cable guard 24 The strainer 25 The brass filter 26 SS studs with nuts of suitable size for pump 27 The upper flange 28 The lower flange 29 upper/ lower housing 30 The Lock Ring 31 The Carbon Housing 32 The Gun Metal bearing, centrifugally cast Aluminium Bronze bearing bush 33 The Circlips 34 The Motor base with pin 35 Dismantling the existing borewell LT Panel as directed and Supply,install,testing and commissioning of LT Panel board ,CPRI approved ,outdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply systemhaving bus bars chamber with aluminium bus bars duly insulated by insulation of RYB colour 200 Amps rating mounted on porcelain insulators .The panels shall be factorymade, double door, made out of 3.15 mm thick MS sheettotally enclosed dust, vermin and rust prooffront operated, front and rear opening with locking arrangement fixed with MSangle iron frame of size 40X40X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable sizeincludinglugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the followingINCOMER:(a) MCCB 63 Amp 4 Pole, 50 Hz, 415 V, 25KA -1 NoOUTGOING:(b) MCB TP25 to 63 Amp 4 Pole, 50 Hz, 415 V -1 Nos(c) Analog Voltmeter and Ammeter- 1 Set(d) Indicating Lamps (R-Y-B) Set LED Type with -one set(e)Space forDOL/ Star delta starter -1NoNote: The Contractor Shall submit the drawing for approval of GE Before executing the work 36 M&L for Earthing complete with galvanised earth plate electrode of size 600x600x6mm thick buried directly in ground earth pit not less than 2.25 m below ground level with top edge of earth plate not less than 1.5 mtrs below ground level connected to galvanised iron strip of size 32mm x 6mm as earth lead upto a length of 7.5 metre long by means of bolts, nuts, washers etc. and protected by GI pipe medium grade 40mm dia and 20mm dia GI tubing light grade with funnel for watering, all as shown in electrical plate No 3 of SSR Part-I, back-fill with salt and charcoal, provision of test point including connected to earth test point and necessary earth work excavation in any type of soil PCC (1:3:6) type C2 bed and chamber RCC (1:2:4) type B1, iron grill including PCC cover with hinge and funnel watering pipe etc all as specified and directed including dismantling the existing one. 37 Disconnecting the delivery pipe line of submersible pump set from water mains and allied fittings, lifting/taking out of GI column pipes of 50mm dia, submersible cable of any capacity from borewells up to 1200ft depth for repairs and lowering of GI column pipe 50mm dia, cable etc complete in the borewell at various sites under GE (AF) Yel. The job is inclusive of M&L for jointing of submersible cable, reconnecting the delivery pipe line to water mains, testing for satisfactory running and continuous flow of water complete all as directed.Note: Repairing/ Servicing of submersible pump set shall be measured and paid separately. 38 Taking up steel tubing of the 50mm size and disconnections of fitting, joints from tubing where required complete all as specified and directed. 39 Supply and lowering GI water tubes heavy duty grade (ISI marked) galvanised with all fittings, jointing, sockets etc and fixed complete in bore well of 50 mm bore pipe, all as specified and as directed. 40 S&F in repair 415V 10KA C curve miniature circuit breaker (MCB) of following poles and current carrying capacity in the DB complete with connection testing and commissioning TP 25 To 63 AMP complete all as specified and directed. 41 S&F flat cable PVC insulated and sheathed multi-stranded copper conductor water proof suitable for submersible pump set of size 4 Sqmm 3 core complete all as specified and directed. 42 S&F flat cable PVC insulated and sheathed multi-stranded copper conductor water proof suitable for submersible pump set of size 2.5 Sqmm 3 core complete all as specified and directed. 43 Supply and lay GI water tubes medium duty grade (ISI marked) galvanised with all fittings, jointing, sockets etc and fixed complete in trenches of 50 mm bore pipe, complete all as specified and directed. 44 Dismantling the existing unserviceable valve chamber in complete and Construction of valve chamber of Internalsize1200mm x 1200mm x 1200mm deep with 200mm thick PCC block masonry walls built in CM 1:6 over 100 mm thick foundation concrete in PCC 1:4:8 type D2, (using 40 mm graded stone coarse aggregate) with 100 mm off sets, 15mm thick complete internal plaster and external plaster up to a depth of 15 cm below GL in CM (1:6), 3 mm thick MS sheet cover, double door welded to 50 mm x 50 mm x 6mm MS angle frame fixed withhold fasts, 20mm x 6mm flat iron hinges with locking arrangement including lock sixty five mm, brass and keys , MS handles and applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer to all steel surfaces including excavation & earth work in any type of soil /soft disintegrated rock and disposal of surplus soil to a distance not exceeding 50 mtr complete all as specified and directed. 45 S&F in repairs star delta starter submersible pump controller suitable for 3Phase ,415V confirm to IS, SPP with auto manual switch, ON/OFF indication, Combined V/A Meter, star delta timer complete all as specified and directed. 46 S&F in repairs direct on-line starter suitable for the following capacity submersible pump set controller, 3Phase, 415V confirm to IS, SPP with auto manual switch, ON/OFF indication, Combined V/A Meter all as specified and as directed. 47 3 HP 48 5 HP 49 7.5 HP 50 Taking up XLPE insulated Al conductor cable of size 10 Sqmm 4 Core from the trench carefully after disconnecting the electric supply complete all as specified and directed 51 Supply, laying and testing cable XLPE Insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 10 sqmm 4 core complete all as specified and directed. 52 M&L for repair of existing energized Borewell outdoor MS panel board by welding the damaged broken panel board doors body sheet, angle iron, frame door hinges, cement concrete to panel board legs, embossing (letters & Nos. as directed) etc., complete all as specified and directed. 53 S&F of ISI mark 150/175mm nominal bore, plain and steel casing pipe grade of steel Fe 410 of wall thickness conforming to IS 4270-2001 and latest amendments, electrical resistance welded steel tubes, material and conforming to IS 1387-1993in random length of 5-7m both ends threaded conforming to IS , one end fixed with socket conforming to and the other end with screwed pipes all shall be responsibly free from defects including slotted as required all as specified and directed. 54 S&F in repairs Gun metal gate valve of 50mm ISI marked with Iron wheel head screwed both end for GI tubing complete all as specified and directed. 55 S&F in repair reflux valve PN 1.0 CI body as per IS with by-pass Arrangement, 50 mm (2”) dia complete all as specified and directed 56 Excavation in trenches in hard/dense soil not exceeding 1.5 mtr width and not exc 1.5 mtr deep for laying of pipe and getting out and surface dressing if required complete all as specified and directed. 57 Returning, filling including spreading levelling watering and well ramming in layers not exceeding 25 cm thick hard/dense soil complete all as specified and directed. 58 Removing surplus soil to a distance n exc 50m and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed. 59 S&F in repairBorewell Electromagnetic flow meter suitable for 50mm dia , flow accuracy : + / - 0.5 % of reading, repeatability : + / - 1% , process pressure: max : 10 kg/cm2 internal : PTFE linning, power supply : 230 V AC, Process connection : ASA 50 flanged MS, IP 65 empty pipe detection, Back light LCD, Velocity :0.2 to 10 m/s measuring unit : selectable kg/h,m3/h,l/h,l/m,l/s,kg/m,kg/s complete all as specified and directed. 60 M&L for Plain Cement Concrete (1:2:4), type B1 (using 20mm graded stone aggregate) as in Coping, bands benching etc including finishing the concrete surfaces even and smooth without using extra cement including necessary formwork Complete all as specified and directed. 61 Supplying and laying un-reinforced precast concrete cable cover, class LV, Type 1 with peak, size 250 mm x 150mm x 40mm complete all as specified and directed. 62 Returning and filling of trenches in two parts (i) using riddled soil obtained from excavated soil upto depth of 30cm (8cm below cable and remaining above cable) for cushioning of cable and (ii) refilling the trench of remaining depth with normal excavated soil all as specified and directed.Note: - Excavated soil shall be riddled by using sieve to separate composite particles etc as per IS 1255-1983 and refilling in trenches as in cable cushioning (for laying of cable) complete all as specified and directed.
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